Progress Toward High Power Output in Thermionic Energy Converters

Progress Toward High Power Output in Thermionic Energy Converters

Thermionic energy converters are solid‐state heat engines that have the potential to produce electricity with efficiencies of over 30% and area‐specific power densities of 100 Wcm−2. Despite this prospect, no prototypes reported in the literature have achieved true efficiencies close to this target,...

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Veröffentlicht in:Advanced science 2021-05, Vol.8 (9), p.2003812-n/a
Hauptverfasser: Campbell, Matthew F., Celenza, Thomas J., Schmitt, Felix, Schwede, Jared W., Bargatin, Igor
Format: Artikel
Sprache:eng
Schlagworte:
efficiency
Electric currents
Electric fields
Electricity
Electrodes
Energy
Heat
heat transfer
power density
Radiation
Review
Reviews
thermionic energy conversion
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Beschreibung
Zusammenfassung:Thermionic energy converters are solid‐state heat engines that have the potential to produce electricity with efficiencies of over 30% and area‐specific power densities of 100 Wcm−2. Despite this prospect, no prototypes reported in the literature have achieved true efficiencies close to this target, and many of the most recent investigations report power densities on the order of mWcm−2 or less. These discrepancies stem in part from the low‐temperature (
ISSN:2198-3844
2198-3844
DOI:10.1002/advs.202003812